update

android/app/src/test/kotlin/de/marha/planer/EditorTest.kt

@@ -0,0 +1,68 @@
+package de.marha.planer
+
+import androidx.compose.ui.text.TextRange
+import androidx.compose.ui.text.input.TextFieldValue
+import de.marha.planer.data.Editor
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Test
+
+class EditorTest {
+    private fun v(text: String, cursor: Int = text.length, end: Int = cursor) = TextFieldValue(text, TextRange(cursor, end))
+
+    @Test fun continueList() {
+        assertEquals("- ", Editor.continueList("- eins"))
+        assertEquals("  * ", Editor.continueList("  * eins"))
+        assertEquals("- [ ] ", Editor.continueList("- [x] fertig"))
+        assertEquals("4. ", Editor.continueList("3. drei"))
+        assertEquals("", Editor.continueList("- "))
+        assertEquals("", Editor.continueList("2. "))
+        assertNull(Editor.continueList("nur Text"))
+        assertNull(Editor.continueList("---"))
+    }
+
+    @Test fun enterContinuesAndEndsList() {
+        val next = Editor.afterInput(v("- a"), v("- a\n"))
+        assertEquals("- a\n- ", next.text)
+        assertEquals(6, next.selection.start)
+        val ended = Editor.afterInput(v("- a\n- "), v("- a\n- \n"))
+        assertEquals("- a\n", ended.text)
+        assertEquals(4, ended.selection.start)
+        // Umbruch mitten im Text: der Rest wandert hinter den neuen Marker
+        val mid = Editor.afterInput(v("1. ab", 4), v("1. a\nb", 5))
+        assertEquals("1. a\n2. b", mid.text)
+        assertEquals(8, mid.selection.start)
+        assertEquals("x\n", Editor.afterInput(v("x"), v("x\n")).text)
+    }
+
+    @Test fun headings() {
+        val h2 = Editor.heading(v("abc"), 2)
+        assertEquals("## abc", h2.text)
+        assertEquals(6, h2.selection.start)
+        assertEquals("abc", Editor.heading(h2, 2).text)
+        assertEquals("# abc", Editor.heading(h2, 1).text)
+        assertEquals("x\n### y\nz", Editor.heading(v("x\ny\nz", 3), 3).text)
+    }
+
+    @Test fun lists() {
+        val ul = Editor.list(v("abc", 1), false)
+        assertEquals("- abc", ul.text)
+        assertEquals(3, ul.selection.start)
+        assertEquals("abc", Editor.list(ul, false).text)
+        assertEquals("1. abc", Editor.list(ul, true).text)
+        assertEquals("1. x\n2. y", Editor.list(v("1. x\ny"), true).text)
+        assertEquals("  t", Editor.list(v("  - [ ] t"), false).text)
+    }
+
+    @Test fun indentAndBold() {
+        assertEquals("  - a", Editor.indent(v("- a"), 1).text)
+        assertEquals("- a", Editor.indent(v("  - a"), -1).text)
+        assertEquals("- a", Editor.indent(v("- a"), -1).text)
+        val b = Editor.bold(v("abc", 0, 3))
+        assertEquals("**abc**", b.text)
+        assertEquals(TextRange(2, 5), b.selection)
+        val empty = Editor.bold(v("ab", 1))
+        assertEquals("a****b", empty.text)
+        assertEquals(3, empty.selection.start)
+    }
+}